While it's true that in itself money can't buy happiness, I think you'll find many people who have a lot of it would argue that it can help enable happiness. For example, if you find yourself hating cooking and cleaning day in and day out, being financially able to hire someone to do this for you allows you to enjoy your true passions; the things that make you happy - like painting, biking, or hiking perhaps. Perhaps, in the same way, having beautiful things your home helps enable happiness - that is, if you enjoy beautiful things of course.
I'm not saying that money, and the beautiful things that one's able to purchase or do with it, can change unhappy situations (like a bad marriage or a crummy job) into happy ones. What I am saying is that while money can't fix unhappy situations it can, in some way, buy happiness.
If you're wondering why I'm being so philosophical - this is the thought I had after visiting the beautiful Victoria Bathrooms shop that I mentioned in my previous post. :)
